def fun1():
    print("这是函数1")


def fun2(name):
    print("这是fun2函数，名字是" + name)
    fun1()


def fun3(name):
    print("这是fun3函数，名字是"+name)
    fun2(name)


if __name__ == "__main__":
    name = "zs"
    fun3(name)
